Is the GA-2100-1A2 good for swimming?

Yes. It is rated to 200 m water resistance, so swimming and snorkeling are fine. Avoid pressing buttons underwater.

How does it compare with the standard GA-2100?

The movement and case are the same. This version adds neon accents on a matte black case and band. Choose it if you want the color pop.

Does it have solar charging or Bluetooth?

No. It runs on a standard battery and has no Bluetooth or solar. Those features appear on higher G-Shock models.

How big is it on the wrist?

The case is about 45 mm wide and 11.8 mm thick, which is slim for a G-Shock. It fits most wrists without overhang.

The watch, a Casio manual and the standard presentation box. No extra straps are included.

Can you read the digital display at night?

The LED light illuminates the face, but the negative LCD stays faint. The analog hands are easier to read in the dark.

What do buyers say about the Casio G-Shock Men's Watch GA-2100-1A2 Analog-Digital?

Rated 5 out of 5 from 1 ratings.

Where can I buy the Casio G-Shock Men's Watch GA-2100-1A2 Analog-Digital?

7 stores we checked sell it, including Walmart, Chrono24.com, CreationWatches.com, Helzberg Diamonds, Bloomingdale's.

Casio G-Shock Men's Watch GA-2100-1A2 Analog-Digital

Q: Where is the Casio G-Shock Men's Watch GA-2100-1A2 Analog-Digital cheapest?

At Walmart, for $78.52, 29% under what the other stores charge, as of our latest check.

Best price now

$78.52at WalmartChecked 59 min ago

29% under what the other stores charge

Compared across 7 stores. Prices are checked against each store and labelled with when.

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What reviewers say

Owners praise the slim, comfortable case and the tough, water-ready build. Many call the negative display hard to read and the resin strap stiff at first. Most consider it a strong value in the G-Shock line.

What people mention

Size and fitPraisedOwners say the slim case sits comfortably and suits smaller wrists better than classic G-Shocks.
Display legibilityCriticisedThe negative LCD is described as hard to read in dim light and at some angles.
BuildPraisedBuyers report the carbon case and bezel feel sturdy and survive knocks.
StrapMixedSome find the resin band stiff and sweaty at first, though it softens with wear.
Night visibilityPraisedThe double LED light and glowing hands are called useful in the dark.

About the Casio G-Shock Men's Watch GA-2100-1A2 Analog-Digital

The Casio G-Shock GA-2100-1A2 is a men's analog-digital watch with an octagonal case and a streamlined design. It has a textured matte black finish with neon color accents. The hour and minute hands have phosphorescent paint, so they stay visible in the dark.

The case and bezel are made of carbon and resin, and the band is resin. The crystal is mineral glass. The watch is shock resistant and has a Carbon Core Guard structure. It is water resistant to 200 meters.

Two LED lights illuminate the face and the digital display. Both have a Super Illuminator and afterglow, and the illumination duration can be set to 1.5 or 3 seconds. A hand shift feature moves the hands out of the way so the digital display is unobstructed. Functions include world time, a 1/100-second stopwatch and a countdown timer.

Display

Analog-digital

Case/bezel

Carbon / resin

Band

Resin

Glass

Mineral glass

Water resistance

200 meters

Shock resistance

Shock resistant, Carbon Core Guard structure